Vivotek IP8131W User Manual download pdf (Page 56)

VIVOTEK

56 - User's Manual

The frame rate will decrease if you select a higher resolution�

■ Intra frame period

Determine how often to plant an I frame. The shorter the duration, the more likely you will get

better video quality, but at the cost of higher network bandwidth consumption. Select the intra

frame period from the following durations: 1/4 second, 1/2 second, 1 second, 2 seconds, 3

seconds, and 4 seconds.

■

Video quality

• Constant bit rate:

Target bit rate:

A complex scene generally produces a larger le size, meaning that higher bandwidth

will be needed for data transmission� To regulate the bandwidth consumption and

storage space for recording videos, you can select the Constant bit rate methodology.

The rmware will try its best to contain the size of video packets within the limitation

of a constant bit rate� This methodoloy enables easier calculation of the network

bandwidth and storage space required for live viewing or video recording�

The bandwidth utilization is configurable to match a selected level, resulting in

mutable video quality performance� The bit rates are selectable at the following rates:

20Kbps, 30Kbps, 40Kbps, 50Kbps, 64Kbps, 128Kbps, 256Kbps, 512Kbps, 768Kbps,

1Mbps, 2Mbps, 3Mbps, 4Mbps, 6Mbps, and 8Mbps� You can also select Customize

and manually enter a value�

• Fixed quality: On the other hand, if Fixed quality is selected, all frames are

transmitted with the same quality; bandwidth utilization is therefore unpredictable�

When so congured, the frame-rate-per-second performance can be compromised

in the event of insufficient bandwidth or network clogs� The video quality can be

adjusted to the following settings: Medium, Standard, Good, Detailed, and Excellent.

You can also select Customize and use the slide bar to designate image quality�

Drag the slide bar to congure a quality level you prefer.

1 2 ... 51 52 53 54 55 56 57 58 59 60 61 ... 194 195

No comments

Vivotek IP8131W User Manual Page 56